Fluid-regulator.



. No. 844,946. PATENTED FEB- 19. 1907.

T. LOWE. FLUID REGULATOR.

APPLICATION FILED JUNE 19. 1905.

II- I\ WIIIIIIAI IYIIIIIlI rmrrnn sr 'rns PATENT onnrcn THADDEUS LOWE, OF PASADENA, CALIFORNIA FLUID-REGULATOR} Application filedfl'unel 1905.

An object of this invention is to provide a fluid-regulator which will operate efficiently.

with both high and low pressure and'which will deliver fluids at a givenpressurelregulated from a supply of wideand... variable a pressure.

The body, diaphragm; other parts of the regulator may beiconstructed of the usual material and: in the manner well known in the art.

The invention relates to the novel construction and combination of partshereinafter set .forth.

The invention may be applied with a diahragm and weight or with a floating reguator used with mercury seal or spring.

In the accompanying drawings the'invention is illustrated as applied ina gas-regulator having a diaphragm and'weightand connected in a gas-pipe: to regulate the flow of gas therethrough.

The invention comprises a gas-governor having two valve-seats, one movlngitoward and from the other. Preferably one of said seats is smaller than the other.

In the preferred form the gasegovernor has one of the two valve-seats yieldingly supported.

The accompanying drawings illustratethe invention.

Figure 1 is an axial section of a-fluid-regu lator embodying this invention. Fig- 2 is a perspective same. Figs. 3, 4, and 5 are sectional details illustrating different positions of the valves under different pressures, lessening in the order of the views.

1 is the body of the regulator; 2,the weight.

3 is the diaphragm; 4, the delivery-chamher; 5, the outlet; 7 the fixed m ain valve-seat; 8, the valve-rod, and 9 is a floating combination valve and seat mounted through the medium of a spring 10 on the valve-rod 8 and provided with an orifice onhigh-pressure fluidway 11 around the stem.

12 is the high-pressure valve adapted to Specification of Letters Patent.

have invented a new andv weight, valve, andv detail of the workingparts of the j 6, the high-pressure inlet;

Patented Feb. 19, 1907.

Serial No; 265,929;

when the valve-rod 8 passing through-the orifice 1 is lifted by. high pressure of fluid in chamber4.

13.is:a spider or crowfoot' fastened to the rod 8r andsliding as a guide on the walls of the main valve-seat 7 and acting to open'the low-pressure valve-'9 whenthe pressure on the high-pressure'chamber 6 is not suffic ent topass therequiredfluid through the orifice 121 to deliver the requiredquantity'of gasor 1 other fluid under the required pressure.-

In practical operation, the gas-regulator being connectedin'the pipe 14 15 as shown,

the gas or other-fluid'passing 1n the direction of. the arrows inside theview'in Fig. 1' eat-- erts a pressure on the diaphragm3, thus tendingto closethe'high-pressurevalve 12 until the escape through the outlet 5 becomes sufficiently great to allow the diaphragm 3 and its attachments tolower under thepr'essure of the weight 2. When-the pressureis high and the outletfrom 5 is closed, theparts will assume the position shown in Fig 3; but when an outlet from 5 is opened, as byv opening av gas-burner or any, other fluid-opening,

. (not shown,-) thus relieving the pressure in chamber 4, the" diaphragm dropping under the pressure of weight 2 will bring the parts into the osition shown in Fig. 4 to increase the flui passage through the regulator. Upon the opening of a maximum number of outlets or upon a corres onding diminution of pressureof the supp y the valve-rod 8 will descend, bringing the crowfoot 13 against the combination floating valve and valve-seat 9, and the parts will comeinto the position shown in Fig. 5. The spring 10 assists in holdingthefloating valveand valveseat 9 seated against the'main valve-seat 7 until a predetermined downward movement of the diaphragm has occurred, and then the floating valve will recedeirom valve-seat 7, and as the diaphragm moves down farther the spring through themedium of thecrowfoot will hold the floating valve at a correspondingly greater distance from the main valve-seat, thus allowing agreater flow of gas laterally into the way through the valve to allow only the predetermined pressure in chamber 4. When the floating-valve is free from the main valve-seat 7, it will rise and fall in correspondence to the movement of the diaphragm.

16 is a screw screwed into the under face of close the orifice or high-pressure fluidway 1 1 the high-pressure valve for holding the spring IOC 10, which is constructed in the form of an inverted cone to carry the floating valve true to the main valve-seat.

It is to be noted that the opening between thefloating valve and valve-seat 9 andthe main valve-seat 7 increases rapidly in its area as the floating valve and valve-seat is allowed to move downward from the main valve-seat 7, for the reason that the opening between the main valve-seat and the floating valve is annular and the supply is taken in from all sides around the valve-seat 7. If the spring 10 were omitted, the gradual vari ation of the pressure might not be so regular and the floating valve 9 would be liable to drop suldenly or to flutter; but by means of the spring '10 the movement is ma ae steadier and truer; nor is it absolutely necessary for the operation of the regulator that any means, as crowi'oot 13, fixed to and moving with the valve-rod, should be provided to move the floating valve and valve-seat 9 away from the main valve-seat 7, for the reason that the gravity of the floating valve and valve-seat 9 will operate to open the way between the same and the main valve-seat. By use of the crowfoot 13, however, the opening of the way between the floating valve and the main valve-seat is made positive.

I do not limit the invention by the use of a spring and may dispense with the same without departing from the principle of this invention in its broader sense.

WVhat I claim is 1. A fluid-regulator having a high-pressure valve operated by fluid-pressure, a main valve-seat, and a combination floating valve and valve-seat between the high-pressure valve and the main valve-seat and provided with an orifice adapted to be closed by the high-pressure valve when under excessive pressure, a pressure-operated valve-stem for the highpressure valve and means on the valve-stem for unseating the floating valve.

2. A fluid-regulator having a high-pressure valve, a main valve-seat, a combination floating valve and valve-seat between the highpressure valve and the main valve-seat and adapted to seat the high-pressure valve, and means moving with the high-pressure valve to move the combination floating valve and valve-seat from the main valve-seat.

3. A fluid-regulator having a high-pressure valve operated by the fluid-pressure, a main valve-seat, a combination floating valve and valve-seat between the high-pressure valve and main valveseat, and provided with an orifice adapted to be closed by the high-pressure valve when under excessive pressure, and a spring moving with the high-pressure valve and operating to hold the floating valve and valve-seat against the main valve-seat sure, a spring moving with the high-pressure v valve and operating to hold the floating valve and valve-seat curing an intermediate movement of the high-pressure valve and means moving with the high-pressure valve to move the floating valve and valve-seat away from the main valve-seat under the lower pressure.

5. A fluid-regulator having a high-pressure valve, a main valve-seat, a floating valve and valve-seat between the high-pressure valve and main valve-seat and having an orifice adapted to seat the high-pressure valve, a spring for supporting the floating valve and valve-seat, and a screw screwed 1nto the under face of the high-pressure valve for holding said spring.

6. A fluid-regulator having a main valveseat,.a floating valve provideu with an orifice, a high-pressure valve to close the orifice and a spring carried by the high-pressure valve and constructed in the form of an inverted cone to carry the floating valve'to close the main valve-seat.

7. In a fluid-regulator a floating valve, a high-pressure valve and a spring between sald valve and moving therewith to operate the floating valve.

8. Amain valve-seat, a floating valve therefor having an orificeand a hLgh-pressure vlave for closing communication through and for seating the floating valve.

9. A main valve-seat, a floating valve therefor having an orifice, a valve-roe through. the orifice and a high-pressure valve on the valverod for closing communication through the valve.

10. The combination of a valve-seat, a floating valve therefor sage therethrough, a valve-stem, a valve on the valve-stem to close the passage through the floating valve, means for operating the valve-stem and a crowfoot on the valvestem for unseating the floating valve.

In testimony whereof I have hereunto set my hand at Los Angeles, California, this 13th day of June, 1905.

THADDEUS LOWE. In presence of JAMEs R. TOWNSEND, JULIA TOWNSEND provided with a pas- 

